Which of the following are the largest sources of water?
Which of the following are the largest sources of water?
The correct option is C Oceans and seas
Oceans and seas are the largest sources of water, covering nearly 71% of the earth's surface. They contain a very high proportion of dissolved substances, mainly common salt. So, they are not fit for direct consumption. Water in rivers and lakes come from rain and melting snow. It also contains dissolved impurities like salts and suspended impurities like clay, sand, twigs and living organisms (germs). Rivers and lakes are the most suitable sources of water for domestic and industrial use. Springs and wells are the sources of underground water. This is the water that percolates through the upper layers of the earth's surface and gets collected on the solid rocks beneath. Rainwater is the purest form of natural water and it is formed naturally by evaporation followed by condensation of water vapour in the atmosphere.
Oceans and seas
Oceans and seas are the largest sources of water, covering nearly 71% of the earth's surface. They contain a very high proportion of dissolved substances, mainly common salt. So, they are not fit for direct consumption. Water in rivers and lakes come from rain and melting snow. It also contains dissolved impurities like salts and suspended impurities like clay, sand, twigs and living organisms (germs). Rivers and lakes are the most suitable sources of water for domestic and industrial use. Springs and wells are the sources of underground water. This is the water that percolates through the upper layers of the earth's surface and gets collected on the solid rocks beneath. Rainwater is the purest form of natural water and it is formed naturally by evaporation followed by condensation of water vapour in the atmosphere.
